Coverages FAQ

How to represent a 0-dimensional coverage?

Related issues: What happens when all the CRS dimensions get sliced in a WCS request? How to encode the GMLCOV description?

Answer: As per GMLCOV, the domain set of a coverage cannot have 0 dimensionality: the //gml:domainSet/@dimension attribute shall be greater or equal than 1. There is no clear guidance on 0-D in the OGC standards,
The recommended solution is to represent such a coverage by the single (atomic or composite) range value in the range set and an empty empty domain set .

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